Electric signal.



P. I. GHANDEYSSON.

ELECTRIC SIGNAL. APPLICATION FILED JAN. 25, 1908.

Patented May 18, 1909.

P. I. GHANDEYSSON.

ELECTRIC SIGNAL. APPLICATION FILED JAN. 25. 1908.

I Patented May 18, 1909.

2 SHEETS-SHEET 2.

. and combination of parts hereina er .d

forms part of this specification, an

I suntan snares Parana erm on PIERRE I. OHANDEYSSON, OF ST. LOUIE-MISSOURI, ASSIGNOR TO PETERS SIGNAL COMPANY,

OF-KNOX, INDIANA, A CORPORATION OF SOUTH DAKOTA.

swornre SIGNAL.

. Specification of Letters Patent. I

'Yatented Kay-18, 1909.

Application filed January 25, 1908. Serial No. 412,589.

To all whom it may concern:

Be it known that I, PIERRE I. CnANnnYs- SON, a citizen of the United States, and a resident of the city of St. Louis and State of Missouri, have invented a new and useful Improvement in Electric Signals, of which the following is a specification. x

My invention relates to electrically actu ated signals and has for its princi al objects to simplify the construction ans arran ements of the circuits and mechanical e ements, to insure certainty of the'proper indication, and to secure other advantages hereinafter appearing.

My invention consists in the arra .emeintsi scribed and claimed. L

In the accompanying drawin which if wherein like symbols refer to like parts wherever they occur, Figure l isan elevation of a sema, here and signal embodyingmy invention; ig. 2-

.is a diagrammatic view of an electrical system conforming to my invention; Fig. 3 is a vertical view of the semaphore operating mechanism with one of the cover plates of the casing removed and with the signal shown in section; Fig. 4 is a vertical section of the signal and the semaphore operating mechanism on the line'el of Fig. .3; 5 is an enlarged detail view of the electrical connection of the armature. circuit; Fig. 6 is a side view of the grooved plate constituting a portion of the electrical contact; and, Fig. 7 is a vertical section on the lane 7-7 of Fig. 5, portions of the severe disks being broken away.

The semaphore blade 1 is mounted upon a shaft or axle 2 and is adapted to rest in three indicating positions, namely, a horizontal position, a high-angle position and a lowangle position. Preferably, the horizontal position indicates danger. The semaphore lade is normally maintained in the horizontal osition by counterweights S mounted on s ort arms 4 secured to the shaft or axle thereof. One of said arms is secured .by means of a set screw 5, whereby the .angil'lar pos'tion of said arm and its counterweight may be varied at pleasure. Preferably, one of the counterweights is permanently arra ed diametricaily o osite the semaphore .bla e, and the adjusta b y mounted counterw.ei t is .a.r-rsn ed at approximately right i t ISaid; e fixed counterweight appronimately counterbalances the semaphore blade in its horizontal position, andthe adjustable counterweight normally holds the semaphore blade in such position. By this arran emen't, the force re uired to shift and hole the semaphore blefilein its high angle position and in its low angle position, respectively,

is less than woul be requiredif there were only one counterweight.

, The shaft of the semaphore has an electrical ,65 armature 6 fixed thereto. This armature has four poles similarly .Woum serie With a batte 25 in a normally open. circuit. Surroun in the armature is a cylindrical shell 8 whici constitutes the base or support for four electro magnets 9' arranged to, con-. stitute a field to cooperatewitl i the armature. The field magnets have. similar windings arranged in series with each other in a normallyopen circuit. In the normal horizontalposi-tion of thesemaphore blade, the respectiue armature poles are midway be-' tween the oles of the field magnets.

Each en of the shell is provided with a cap plate 10 adapted to'be bolted or otherwise secured thereto andhavi a central opening constituting a journalor; caring for the semaphore shaft..- Fixed to the shaft near each end thereof is adisk 11 of insulating material npon which is --ri1oun-ted ametal ring or contact plate 12 to vwhich the windings of the armature are electrically connected by wires 13, 14. Fixed upon each of the .cap plates of the casing is a 1,5 of insulating material, said ringsbeing secured by means of screws which pass through insulating washers 16. Extending transversely through eachof the rings is a series of adjust-- ing screws 17 whose ends bear in sockets rovidedtherefor in a metalring 18 whic is mounted thereon. This metal ringsurrounds but is spaced from the armature shatt and has an annular groove 19 in its inner face. This groove constitutes a raceway for a-series of antifriction balls 20, which bear against the contact plate 12 fixed to the insulating plate that is mounted to turn with the armature shaft. Agroove 21 extending upwardly from the annular groove to the periphery of the metal ring at the ,uppermost portion thereof furnishes a convenient means of insorting the balls into the raceway. The pressure on the balls is regulated by pro, erly -ad-' justing the adjusting screws 17. T e metal rings 18 are provided with binding posts ,22 10 50 magnet 28. By this arrangement,;when the phore field windin's, and the other end of said semaphore fie d windings is connected by the wire 31 and the wire 32 to the forestop' of said second armature 29. Y The forestop of the first mentioned armature 27 and the back stop ofjthe second armature 29 are electric ally connectedand both communicate with the wire SO-Which is'connec t'ed' to the field winding as above mentioned: "When the electro-magnet 28 is' energized, a'circuit is completed through both the semaphore armature and the field magnet asfollows: Starting from thebattery'25, the circuit follows the wire 23, the semaphore armature, the wire 24, the armature 29 andits forestop to the wire 32, the wire 31, the semaphore field windings,'the' wire to the forest'op of the armature 27 and thence through said armature 27 and the wire 26 back to the battery 25'. When the electro magnet 28is energized, therefore, the-circuit is completed through both the field and the armature of brought opposite 1t net, the direction of rotation of the armature [the semaphore operating mechanism, with the result that the'lpoles of the armature. are

poles of the fie'ld mag shaft depending-upon the direction of the current. In-or'der to provide'for' reversing the polarity of the current through the semaphorefie'ld, the backstop of the armature 27 15 connected by a wire 33 to the fore sto of the armature 34of a second'electro-magnet 5'35, andxthislast'mehtioned armature is con nectedr'by thewire 36 to the wire 31, which is permanently connected to one end of the windings of the field magnet. The other end of the windings of such field ma net is connected as abovestated to the bac stop of the armature 29 of the first mentioned electrosecond electromagnet 35 is energized and,

the first remains deenergized, a circuit is completed as follows: beginning at the battery 25, thence by the wire 23 to and through the semaphore armature and the wire 24 to the armature 29 of the electro-magnet 28;

thence through the back of 'said armature 29 and the Wire 30 to and throu h the field. windings of the. semaphore, an thence by wires 31 and 36 to the armature 34 of the electro-magnet 35' and thence through the forestop of said armature 34 and the wire 33 to the backstop of the armature 27 and;

' thence through the armature 27 and the wire tiveliy, red, white and greenl 26 back to the battery 25; This circuit is com leted through both the armature andthe 1 eld magnets of the sema here, as in the case of the circuitcompleted y'the energizmg of the first magnet. In the present case,

however, the-current through the field magnets is in a 'direction'th'e reverse of the cur-- rent of the first mentioned circuit, and consequently, the armature and its shaft are movedin a' reverse direction;

, It is considered unnecessary for present purposes to describe the method of bringing the two circuit controllin electro-magnets into operation. 'Preferab y, these electromagnets are elements of a block signalsystem of the kind more fully described in application No. 293,145 for Letters Patent therefor,

filed by me on December 23, 1905. Accord ing to such system, the normal position of the-semaphore is the "danger posltion, the

local circuit of the semaphore actuating mechanism being open.

Vihen the engine arrives at a predetermined section of the track, it causes one of the controlling magnets to be energized thereby completing the circuit of the semaphore operating mechanism through the armature of said magnet, with the result that the armature is shifted to its-cautionary osition. When the tram reaches the next lock-[the other 0011- trolling magnet comes into operation to reverse the current through the field magnet,

.with'the resultthat the semaphore is shifted back past danger position to the clear position. v

""In addition to the semaphore, my dcviceis equipped with-threecolored lights which correspond respectively to the three positions of For this purpose, a lantern the semaphore.

of the casing of the is mounted on the to semaphore motor. T is lantern preferably comprises a hori'zontallymounte cylinder whose ends are closed with ordinary signal lenses andinside of saidcylinder are the three 1 incandescent electric lamps colored, respec- The filaments of al f these lamps are electrically connect ed to the wire '23 which is connected to the battery 25. The white lamp 37 is electrically connected through the wire 38 to the forestop of an armature 39 of the electric magnet 28, said armature 39 being electrically connected to the wire 26 which in turn is connected to the battery 25. The red lamp. I

40 is connected by the wire 41 to the backstop of an armature 42 ofthe electro-magnet 35 andsaid armature 42is connected by the wire 43 to the backstop of said armature 39 of the electro-magnet 28, which armature 39,

as above stated, is connected by the wire 26 to thebattery 25. The green lamp 44 is' connected by the wire45 to theforestop of said armature v42 of the electromagnet 35 which armature in turn-is indirectly conn'ectfa r ed to thewbatt'ery 2 5 as just described. By

mature and said this arrangement, the circuit is completed through one or another of the three amps but through only one at a time.

' Obviously, the location of the battery in the circuit and the'location of the circuit changer are of, minor importance, as it amounts to the same thing whether the current is reversed through the semaphore armature or the field magnet. I donot wish, therefore, to restrict myself to the details of construction or of the arrangements of parts above. described. i

What I claim as my invention and desire to secure by Letters Patent is:

1. An electric motor comprisin a fourpole armature and a four-pole 'fiefid, and a semaphore blade on the shaft of said armature, said shaft being counterweighted' to normally hold said semaphore in horizontal position with armature poles midway between the field poles. I g

2. An electric si al apparatus comprising an electric motor aving afour-pole armature and a fdur-pole field, and means tending to hold said armature poles midway between the field poles, and a' normallyopen electric circuit containinfizthewindings of said areld, and means for changin the relative'polarity of the two sets of 0 es and three differently" colored'electric ights, one of said lights'being in a normally closed circuit and the other two being. in. multiple arcs. of a normally open circuit adapted to be closed by said vp0 e-changing means.

3. An electric signal apparatus comprising an electric motor having a multipolar armature and a multipolar field and means tending to hold said armature poles midway between the field poles and a semaphore on the armature shaft, and a normally open electric circuit containin the windings of said armature and said fie d and means for changing one relative polarity of the two sets of poles and three differently colored lamps corresponding respectively to the normal and the two actuated positions of the armature shaft.

- 4. An electric signal apparatus comprising an electric motor having a four-pole armature and a four-pole field, a counterweighted semaphore onsaid armature tending to hold said armature poles in a horizontal position midway between the field poles and a normally open circuit containing in series the windings of said armature and of .saidfield, and. means for changing the polarit of one of said poles with respect to the ot er.

5. An electric signal motor comprising a multipolar armature and a multipolar field, a semaphore blade on the shaft of .said armature, counterweighted to normally rest in horizontal position and hold said armature poles midway between the field poles.

6. An inclosed electric signal motor comprisin a protective shell, a horizontal armature sh a multi olar armature on said shaft and a multi 0 ar field inside of said shell and surroun ing said armature and a semaphore on said armature counterweighted to nor- .mally rest in horizontal position.

7. An electric signal motor comprising an armature, an armature shaft, an insulated contact disk on said shaft connected to the armature Winding, and an insulated contact disk on the framework connected to the ciraft. j our'naled in the ends of said shell,

cuit wire, the adjacent surfaces of said disks having annular grooves therein constituting'a raceway and antifriction balls in said raceway.

I Signed at PIERRE I. OHANDEYSSON. Witnesses G. A. PENNINGTON, J. B. MEGOWN.

St. Louis, Mo-., December 27, 

